Orbital Diagrams and Electron Configuration - Basic Introduction

What is the electron configuration of nitrogen?

• 1s2 2s2 2p4

• 1s2 2s2 2p5

• 1s2 2s2 2p6

• 1s2 2s2 2p3

How many unpaired electrons does nitrogen have?

• One

• Two

• Four

• Three

Is magnesium paramagnetic or diamagnetic?

• Paramagnetic

• Diamagnetic

• Antiferromagnetic

• Ferromagnetic

What is the electron configuration of magnesium?

• 1s2 2s2 2p4

• 1s2 2s2 2p6

• 1s2 2s2 2p5

• 1s2 2s2 2p3

How many electrons does an atom of phosphorus have?

• 12

• 13

• 14

• 15

Is the sulfide ion paramagnetic or diamagnetic?

• Antiferromagnetic

• Paramagnetic

• Diamagnetic

• Ferromagnetic

How many electrons does the aluminum plus three ion contain?

• 13

• 12

• 11

• 10

What is the electron configuration of cobalt as an atom?

• 4s2 3d7

• 4s2 3d5

• 4s0 3d7

• 4s0 3d5

How many protons does an atom of cobalt have?

• 26

• 27

• 28

• 25

What is the correct way to determine the electron configuration of a transition metal ion?

• Subtract electrons from the highest energy level

• Add electrons to the 4s sub-level

• Add electrons to the 3p sub-level

• Subtract electrons from the 3d sub-level